Grist: s this a flower? As a species, we are not doing right by bees. They work so, so hard to pollinate the plants that form the basis for human existence, and, at every junction, we try to thwart them. A new study, for instance, has found that diesel fumes from cars essentially eliminate bees’ ability to smell flowers. If bees can’t smell the flowers, they can’t find them, which means they can’t feed off them or pollinate them, either. The researchers found, specifically, that the nitrogen oxides in…